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Lemur [1.5K]
1 year ago
7

Please help! Please help!! Please help!!!​

Mathematics
1 answer:
klasskru [66]1 year ago
4 0

Answer:

36 is the answer to the questions

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Answer:

It is an integer(yes)

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It is a whole number that is negative.

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Marie has a rectangular board 12 inches by 16 inches around which she wants to put a uniform border of sherlls. if she has enoug
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Area of rectangular board = length (inches) x width (inches) = 12" x 16" = 192 in²

Area of the border is given as 128 in²

Adding the area of the board and the border gives (192 + 128)in² = 320 in²

Set this up as the algebraic equation (x + 12)(x + 16) = 320 and solve for x:

Remember to use the FOIL method, which is multiplying the terms in the order of first, outer, inner, last.

x² + 12x + 16x + 192 = 320

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solve for the two x values:

(x + 32)(x - 4) = 0, and knowing we only need the positive x value

x = 4 or 4 inches is the width of the border



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Round off 9.999 to the nearest 10​
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Step-by-step explanation:


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